| abstract |
There are disclosed novel 1-nitro-2,2-diaminoethylene derivatives of formula I <IMAGE> (I) wherein X is chlorine, fluorine, unsubstituted or halogen-substituted C1-C5alkyl; unsubstituted or halogen-substituted C1-C5alkoxy, unsubstituted or halogen-substituted C1-C5akylthio, unsubstituted or halogen-substituted alkylsulfinyl, unsubstituted or halogen-substituted alkylsulfonyl; or also nitro, cyano, thiocyanato, C3-C5haloalkenyl, C3-C5haloalkynyl, hydroxy, C1-C5alkoxycarbonyl, amino, C1-C4dialkylamino, C1-C5alkylcarbonyl, C1-C5alkylcarbamoyl or C1-C5alkylcarbonyloxy, n is an integer from 0 to 4, R1 is hydrogen, C1-C5alkyl or C3-C7cycloalkyl, R2 is hydrogen, C1-C5alkyl, C3-C7cycloalkyl, R3 is hydrogen, C1-C5alkyl, C3-C7cycloalkyl, benzyl or pyridinylmethyl, or R2 and R3, together with the linking nitrogen atom, are the pyrrolidinyl or piperazinyl radical, with the proviso that not more than one of the substituents R1, R2 and R3 is hydrogen, and the cis and trans-isomers and salts thereof. The invention also relates to the preparation of these novel compounds and to compositions containing them and to the use thereof in pest control, especially for controlling insects. |